Sorry themewaver but cannot find the “add_theme_support( ‘livingos_breadcrumbs’ );” line you mentioned in functions.php? Am I missing something or looking in the wrong place? I am looking at functions.php available through the editor in the dashboard.

There are more than one files called fucntions.php in the theme. You need the one in the theme’s root folder. Though it is best to edit in notepad or similar on your PC/mac and then upload. The dashboard editor is not great.